Advance unit for high precision machine tools

摘要

The advance has slide elements (5) extending at right angles to the direction of movement (6) of the parts being processed. The elements are contained in a parallel crank quadrilateral link (7). The link is located in planes parallel to movement track of the parts, and has a stationary side at right angles to that track. The slide elements have active tooth-shaped ends (8), moved by drives with stationary cams (16), parallel to the stationary side, and against elastic elements (14).